Percolator.



H. A. HEYNE.

PBRCOLATOR.

APPLICATION FILED APR.88,1913.

1,106,045. Patented Aug. 4, 1914.

\ WITNESSES V I INVENTOR BY @W ATTORNEYS IHE NORRIS PETERS (0.I'HUTU-LI'I'HO. WASHINGTON D C UNITED STATES PATENT ornion;

HOWARD A. ,HEYNE, OF NEW YORK, N. Y., ASSIGNOR OF.0NE-HALF TO WALTER Il-DOUGLAS, OF NEW YORK, 1 T. Y.

PERCOLATOR.

Specification of Letters Patent.

Patented Au 4, 1914.

To all whom it may concern Be it known that I, Howann A. Harris, acitizen of the United States, and a resident of the citv of New York,borough of Brooklyn, in the county of Kings and State of New York, haveinvented a new and Improved Percolator, of which the following is afull, clear, and exact description.

Among the principal objects which the present invention has in View are:to pro vide a receptacle for ground coffee, adapted to be expanded andcontracted to fit various sizes of coffee-pots; to provide a percolatorof the character mentioned with a telescopic circulation tube; toprovide a transparent cover for said receptacle, shaped to fit the sameunder various conditions of expansion thereof; and to simplify andminimize the cost of construction.

One embodiment of the present invention is shown in the accompanyingdrawings, in which Figure 1 is a vertical section of a coffeepot ofusual construction, shown as having applied thereto a percolatorconstructed and arranged in accordance with the present invention, thepercolator being partly cut away to more clearly show the constructionthereof; Fig. 2 isea top plan View of the ground-coffee cup andcirculating tube therein; Fig. 3 is a detail view in perspective,showing the lower section of the circulating tube; Fig. 1 is a detailview, on an enlarged scale, showing one of the leaves forming theground-coffee cup. 7

As seen in the accompanying drawings, the ground-coffee cup is providedwith a perforated disk bottom 9. Fixedly attached to said bottom is acirculating tube 10. The tube 10 is extended upward through the centerof the cup and above the upper edge thereof. The lower portion of thetube 10 extends below said bottom 9, and there re-' ceives and guidesthe telescopic section of the lower circulating tube 11. The tube 11 maybe of any desired length, and is provided at the lower end thereof witha conical trap 12. The trap 12 is provided with a relatively enlargedopen base. The sides forming the trap ale outwardly extended at thelower edge to form a supporting or foot flange 13. The spread of theflange 13 is preferably sufficient to form a steadying support for thepercolator when introduced into the coffee pot.

The cup is preferably circular in form and contracted at the lower endin resemblance to an inverted frusto-cone. The side wall of the cup isformed from a plurality of suitably shaped and suitably connected leaves14. Theleaves 141 are each provided at the lower end thereof with a tab15, by which theyare operatively connected to the bottom 9, slots beingformed in said bottom to receive each of said tabs, which are bent, asshown by the broken line in Fig. 4 of the drawings, under the lower sideof said bottom. The joint thus formed permits each leaf to rock on thebottom, an action necessary to the contraction and expansion of theupper edge of the cup. The leaves are each slidingly connected adjacenttheir upper edges with the two leaves adjacent to each. The connectiontherebetwecn is formed primarily by a lug 16 which is formed by cuttingsaid lug from the material of the leaf and overturning the same at anangle substantially perpendicular to the face of the leaf 14-. In linewith the overturned portion of the lug, a slot 17 is cut in the leaf.

\Vhen connecting the leaves 1 1, the lug 16. of each is extended throughthe slot 17 of one of the adjacent leaves,while the lug 16 of the otheradjacent leaf is extended through the slot 17 in the leaf referred to ashaving the lug. When the lugs are extended through the slots in themanner referred to, they are overturned, as shown best in Fig. 4: of thedrawings, thereafter forming a freely-sliding connection between theleaves. The joint thus made is suliieiently free to permit the leaves tobe expanded to their full capacity, while at the same time said joint ismade sufficiently close to avoid a too free movement of the leaves. Tosupport the cup in the pot, when in service, each of the leaves isfurther provided with a hanger section 18, adapted to rest upon andextend over the top edge of the pot.

The cover 19 is preferablv constructed of glass, having a knob 20 forlifting said cover, a

conditions the cover above the ground-codes deposited in the cup.- Whenthe cover 19 is in service position, the upper end of the tube 10extends within the flange 21. By this arrangement, all the steam whichis carried up with the stream of liquid coffee is introduced within thehollow of the cover 19 and there condensed to drip backward on the innerwalls of the flange 21 upon the ground coffee within the cup. The liquidcoffee referred to passes from the bottom of the pot to the interior ofthe trap 12 by means of a relatively small inlet opening 22 (see Fig. 3of the drawings).

The operation as a percolator of the present invention is substantiallythat of any apparatus of this character; that is to say, the liquidcofiee or boiling water in the coffee-pot is delivered through theopening 22 to the interior of the trap 12, to be there heated orrelatively superheated to rise upward through the tubes 11 and 10 toabove the general level of the water or liquid in the coffee-pot andabove the ground cofiee in the cup. The boiling liquid percolatesdownward through the body of ground-coffee in said cup and passestherefrom to the perforated bottom 9, or, in the present instance, inpart between the leaves 14. The objection to percolators heretoforeurged has been that a purchaser has been compelled to discard acoffee'pot in his or her posses sion to purchase another having thepercolating equipment, thereby incurring an unnecessary expenditure. Thepresent invention is designed to overcome this objection by providing apercolator which may be adapted or attached to any coffee-pot which thepurchaser may at the time of purchasing own. A further objection topercolators has existed in that the percolator has not adapted itself tothe expansion often wished for in service, such as occasioned byaccession to the household and where the household is provided withcoffeepots of different capacity, The equipment of the old percolatorhas prevented the transference from the smaller or larger coffee-pots,as the case may be, to one of different capacity and climensions. Thisis overcome in the present invention, as the cup may be expanded toaccommodate, within reasonable bounds, the

top opening of any coffee-pot, and the cover 19 of the present cup willaccommodate any expansion of said cup.

, same; a perforated bottom for said cup; and

a side wall for said cup, embodying a plurality of leaves operativelyconnected each with the other and each with said bottom,

' to move relative each other and said bottom, for expansion of the topopening of said cup.

2. A percolator, comprising a cup to hold ground coffee; a circulatingtube extending upward through said cup from below the same; a perforatedbottom for said cup; a side wall for said cup, embodying a plurality ofleaves operatlvely connected with each other and with said bottom, tomove relative to each other and said bottom for expansion of the topopening of said cup; and a hollow cover for said cup, having adownwardly-contracted flange inclined to fit the upper edge of said cupunder various conditions of expansion.

3. A percolator, comprising a cup to hold ground coffee; a circulatingtube extending upward through said cup from below the same; a perforatedbottom for said cup; a side wall for said cup, embodying a plurality ofleaves operatively connected each with the other and each with saidbottom to move relative to each other and said bottom, for expansion ofthe top opening of said cup; a hollow cover for said cup, having adownwardly-contracted flange inclined to fit the upper edge of said cupunder various conditions of expansion; and a hollow conical memberslidably connected with said tube, said member having inclined wallsupwardly contracted, said walls having an opening adjacent the bottomthereof for admission of liquid thereto.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HOWARD A. HEYNE.

Witnesses:

E. F. Monnocn, PHILIP D. R'oLLHAUs.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington; D. C.

